Why ethylene glycol is added to water, in the radiators of cars, during winter ?
Because ethylene glycol acts as an anti-freeze.
Because ethylene glycol raises the freezing point of water.
Because ethylene glycol does not allow heat of water to go out.
Because ethylene glycol reacts with water and forms a compound whose freezing point is much lower than that'of water.
Which of the following statements is true about Cryogenics ?
Cryogenics is a branch of science which deals with the production of 'very low' temperatures.
Cryogenics is a branch of science which deals with genes.
It is a disease of the throat caused by excessive crying.
It is a painful brain turnour.
Why thick glass tumblers crack when very hot liquids are poured in them ?
Because of unequal expansion of inner and outer layers of tumbler.
Because thick glass tumblers are of a poor quality.
Because thick glass tumblers cannot withstand high temperatures.
Because thick glass tumblers cannot withstand sudden expansion.
Why does a big fire in the open appear to be fanned by strong winds ?
Because fire attracts oxygen of the air.
Because fire repels carbon dioxide of the atmosphere.
Because the air a~ove the flames becomes hot and rises up. The air surrounding the fire rushes to fill that vacuum. Thus, ars that the fire is fanned by strong winds.
Because there is a continuous expansion of the air suff ounding the fire.
A faulty diet decreases
height and weight.
resistance to infection.
both (a) and (c).
Which of the two will be warmer, single thick blanket or two thin blankets (one placed over the other) ?
Two blankets, one placed over the other.-
Both will be equally warm.
Nothing can be said.
A balanced diet is one which has an adequate supply of
carbohydrates and fats.
vitamins and minerals.
all of these.
Vitamin B-complex is a group of vitamins which are water soluble. It includes
all of these.
What is the main function of carbohydrates ?
To provide energy.
To maintain body.
To promote digestion of food.
To promote growth of hair.
Why mountains are cooler than plains ?
Because mountains absorb more heat.
Because mountains do not absorb any heat.
Because air on mountains is less dense and, therefore, it absorbs much less heat from the rays of the sun.
Because there is plenty of rainfall in the mountains.
1. World Geography -Test-01
2. World Geography -Test-02
3. World Geography -Test-03
4. Geography of India -Test-01
5. Geography of India -Test-02
6. Geography of India -Test-03
7. Geography of India -Test-04
8. Geography of India -Test-05
9. History of India - Test - 01
10. History of India - Test - 02
11. History of India - Test - 03
12. History of India - Test - 04
13. History of India - Test - 05
14. History of India - Test - 06
15. History of India - Test - 07
Awesome Things You Should Know Before Visiting London
Valentines Day Dessert Recipes
What to Eat in Manipur
Famous Hill Station of India
101 Christmas Decorating Ideas
Linux Interview Q & A
Ways Lefties Are Better Than Righties
Since a lefthanded persons brain thinks more quickly, they can handle more tasks at once.